Thereva nobilitata
In 3 days ~10% in a week ~30%
Thereva nobilitata is a species of fly from the family Therevidae. It is commonly known as the common stiletto. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Common Stiletto sighting in Berlin on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 473rd most-seen of the 1065 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
June to August
In those months about 10% of wildlife watchers report a Common Stiletto in Berlin on a given day, against under 5% in September to May, the lowest months.
Yes
Of the 2 cities where we can rate Common Stiletto sightings, Berlin has the highest daily chance: under 5%. Next come Vancouver (Canada, under 5%).
Same order: Diptera
The closest relatives of the Common Stiletto that you can see in Berlin (order Diptera, Flies) are Marmalade Hover Fly (about 20%), Yellow-Haired Sun Fly (about 10%) and Hornet Mimic Hover Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Common Stiletto is recorded against all the insects logged in Berlin (16 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
